Under a fresh install of 8.2.x, when I run tests, only Kernel tests seem to fail with this message from the testing UI:
(path/to/test/Kernel/test.php) ... Permission denied
Pretty much any Kernel test I select exits immediately with that error. Other tests, like Unit tests, work fine. Is this a file permission issue or something I missed in config?
drush -y en basic_auth
in my setup script for Drupal 8 dev. Want to try with and without with a test that fails for you.